Hi dear filebit.pl users,
technically, these issues were caused by filebit.pl themselves as they shut down/broke the API which we are using to access their website.
sadly their support hasn't responded to our request to fix their issue so I've added a workaround so now we're using their website in our plugin.

Keep in mind that two things may be different now:
1. The plugin may break at any time when filebit.pl decides to change the layout of their website.
2. For the first time when trying to login via JDownloader, a captcha will be required (same as via filebit.pl website).
This SHOULD only happen the first time you add your account to JDownloader; after that, JDownloader should not ask you for a captcha for filebit.pl account login procedure again.